/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.cli.utils;

import org.apache.commons.lang3.StringUtils;

import java.io.PrintStream;
import java.lang.Character.UnicodeScript;
import java.util.List;

public class IoTPrinter {
    private static final PrintStream SCREEN_PRINTER = new PrintStream(System.out);

    public static void printf(String format, Object... args) {
        SCREEN_PRINTER.printf(format, args);
    }

    public static void print(String msg) {
        SCREEN_PRINTER.print(msg);
    }

    public static void println() {
        SCREEN_PRINTER.println();
    }

    public static void println(String msg) {
        SCREEN_PRINTER.println(msg);
    }

    public static void printBlockLine(List<Integer> maxSizeList) {
        StringBuilder blockLine = new StringBuilder();
        for (Integer integer : maxSizeList) {
            blockLine.append("+").append(StringUtils.repeat("-", integer));
        }
        blockLine.append("+");
        println(blockLine.toString());
    }

    public static void printRow(List<List<String>> lists, int i, List<Integer> maxSizeList) {
        printf("|");
        int count;
        int maxSize;
        String element;
        StringBuilder paddingStr;
        for (int j = 0; j < maxSizeList.size(); j++) {
            maxSize = maxSizeList.get(j);
            element = lists.get(j).get(i);
            count = computeHANCount(element);

            if (count > 0) {
                int remain = maxSize - (element.length() + count);
                if (remain > 0) {
                    paddingStr = padding(remain);
                    maxSize = maxSize - count;
                    element = paddingStr.append(element).toString();
                } else if (remain == 0) {
                    maxSize = maxSize - count;
                }
            }

            printf("%" + maxSize + "s|", element);
        }
        println();
    }

    public static void printCount(int cnt) {
        if (cnt == 0) {
            println("Empty set.");
        } else {
            println("Total line number = " + cnt);
        }
    }

    public static StringBuilder padding(int count) {
        StringBuilder sb = new StringBuilder();
        for (int k = 0; k < count; k++) {
            sb.append(' ');
        }

        return sb;
    }

    /**
     * compute the number of Chinese characters included in the String
     */
    public static int computeHANCount(String s) {
        return (int)
                s.codePoints()
                        .filter(codePoint -> UnicodeScript.of(codePoint) == UnicodeScript.HAN)
                        .count();
    }
}
